tonight, joe biden and paul ryan will go head-to-head in the first debate. wisdom martin has this week's campaign u. >> reporter: we're here at campaign u, and we're talking about the polls and the big vice presidential debate tonight. professor, tell me about the polls. we have seen a dramatic change since the last time? >> you have national polls where mitt romney is ahead and that would have been unthinkable a few weeks ago and whether -- whoever you think won the media has determined that that -- mitt romney won huge and brama lost. you will -- barack obama lost badly. bottom line is, when the media narrative resets and said that mitt romney is surging and mitt romney is becoming more moderate in his rhetoric and has been reaching out making himself more personal, by doing things he had not done out for the elect, he's re- this election, he's re-introducing himself to the people that he did not do a few months ago. the tightening of the poll suggest it might be working. >> what about the presidential debate how huge is that? >> it's really huge. it's a d